Having met on a train, a smooth-talking psychotic socialite shares his theory on how two complete strangers can get away with murder to an amateur tennis player — a theory he plans to test out.

Genre: Crime, Thriller Actors: Al Bridge, Al Hill, Alfred Hitchcock, Anthony Redondo, Barry Norton, Benjie Bancroft, Brick Sullivan, Brooks Benedict, Chalky Williams, Charles Marsh, Charles Meredith, Charles Sherlock, David McMahon, Dick Ryan, Dick Wessel, Edna Holland, Edward Clark, Edward Hearn, Farley Granger, Franklyn Farnum, Fred Kelsey, George Magrill, Georges Renavent, Harry Baum, Harry Hines, Herbert Evans, Howard St. John, Howard Washington, J. Louis Johnson, Jack Cushingham, Janet Stewart, Jay Eaton, Joe Brooks, Joe Warfield, Joel Allen, John Brown, John Butler, John Daheim, John Doucette, Jonathan Hale, Kasey Rogers, Kay Garrett, Laura Treadwell, Leo G. Carroll, Leonard Carey, Louis Lettieri, Marilyn Dialon, Marion Lorne, Mary Alan Hokanson, Mike Lally, Mike Morelli, Minna Phillips, Monya Andre, Murray Alper, Norma Varden, Odette Myrtil, Oliver Cross, Patricia Hitchcock, Paul McGuire, Paul Panzer, Perc Launders, Ralph Moody, Richard Neill, Robert B. Williams, Robert Gist, Robert Haines, Robert Walker, Roland Morris, Roy Engel, Ruth Roman, Sam Flint, Sam Harris, Shirley Tegge, Spec O'Donnell, Stuart Hall, Suzanne Ridgway, Thomas Martin, Tom Ferrandini, Tommy Farrell Directors: Alfred Hitchcock Production: Warner Bros. Pictures